OpenAI updates its Agents SDK to help enterprises build safer, more capable agents

image via TechCrunch

April 15, 2026, 7:28 PM

• •OpenAI updates Agents SDK with sandboxing and in-distribution harness.
• •Sandboxing allows agents to operate in controlled environments.
• •In-distribution harness enables agents to work with files and approved tools.
• •New features initially in Python, with TypeScript support coming.
• •Offered to all customers via API, with standard pricing.

OpenAI has updated its Agents SDK, introducing new features to help businesses create automated agents using its models. These new capabilities include sandboxing, allowing agents to operate in controlled environments, and an in-distribution harness for frontier models to work with files and tools within a workspace. These updates aim to enable users to build complex, multi-step "long-horizon" agents. The new features are initially launching in Python, with TypeScript support planned for later, and are available to all customers via the API.

Read original article